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Avian Research 2021年第1期12卷 118-123页

作者： Marco Gustin alessandro Ferrarini Conservation Department BirdLifeLIPU(Lega Italiana Protezione Uccelli)Via Udine 343100 ParmaItaly

The Red-footed Falcon(Falco vespertinus)is a species of high international conservation *** analyzed its hunting behavior at the two largest colonies in Italy during the nestling *** accurate data-loggers,we tracked three adult Red-footed Falcons in June and July,2019 and collected 4703 GPS *** detected clear patterns of hovering and perching activity(HPA)in both time and *** occupied one-third of the Red-footed Falcons’day,and showed two peaks just after sunrise(between 35 and 40%of the monitoring time)and just before sunset(50‒60%)in both June and July,and minimum(20‒30%)at night and during the hottest time interval(10:00 a.m.‒4:00 p.m.).Almost 40%of HPA occurred within 50 m from *** findings,although preliminary,have important implications for the conservation of these two colonies that are located within two Natura 2000 *** detected spatio-temporal patterns of Red-footed Falcons’hunting behavior suggests the creation of two nested protection belts:the inner one is a narrow belt(up to 50 m from the two rows of trees that host the two colonies)with integral conservation,and hopefully increase the alfalfa crops and fallow land,and the outer belt(50 m‒2 km)with optimized agricultural activities.

关键词： Biotelemetry Falco vespertinus Hovering Italy Natura 2000 site Perching

The Role of a Vanishing Interfacial Layer in Perfect Elasto-Plasticity

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Chinese Annals of Mathematics,Series B 2015年第5期36卷 813-828页

作者： Gilles A.FRANCFORT alessandro GIACOMINI LAGA Université Paris-Nord and Institut Universitaire de France DICATAM Sezione di Matematica Universita degli Studi di Brescia

A two-phase elasto-plastic material is investigated. It is shown that, if the interface is modeled as the limit of a vanishing layer of a third material, then the resulting two-phase material will exhibit a smaller in... 详细信息

关键词： Plasticity Variational Evolutions Interfaces Functions of bounded deformation

Application of a Robust Model Reference Adaptive Control Algorithm to a Nonlinear Automotive Actuator

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International Journal of Automation and computing 2014年第4期11卷 377-391页

作者： alessandro di Gaeta Umberto Montanaro Istituto Motori National Research Council Naples Italy

Model reference adaptive control is a viable control method to impose the demanded dynamics on plants whose parameters are affected by large uncertainty. In this paper, we show by means of experiments that robust adaptive methods can effectively face nonlinearities that are common to many automotive electromechanical devices. We consider here, as a representative case study, the control of a strongly nonlinear automotive actuator. The experimental results confirm the effectiveness of the method to cope with unmodeled nonlinear terms and unknown parameters. In addition, the engineering performance indexes computed on experimental data clearly show that the robust adaptive strategy provides better performance compared with those given by a classical model-based control solution with fixed gains.

关键词： Model reference adaptive control robust adaptive control nonlinear systems automotive control electronic throttle body electromechanical actuators

Laparoscopic rectal cancer surgery: Where do we stand?

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World Journal of Gastroenterology 2012年第46期18卷 6747-6755页

作者： Mukta K Krane alessandro Fichera Department of Surgery University of Chicago Pritzker School of Medicine 5841 South Maryland Ave MC 5095 Chicago IL 60637 United States

Large comparative studies and multiple prospective randomized control trials (RCTs) have reported equivalence in short and long-term outcomes between the open and laparoscopic approaches for the surgical treatment of colon cancer which has heralded widespread acceptance for laparoscopic resection of colon cancer. In contrast, laparoscopic total mesorectal excision (TME) for the treatment of rectal cancer has been welcomed with significantly less enthusiasm. While it is likely that patients with rectal cancer will experience the same benefits of early recovery and decreased postoperative pain from the laparoscopic approach, whether the same oncologic clearance, specifically an adequate TME can be obtained is of concern. The aim of the current study is to review the current level of evidence in the literature on laparoscopic rectal cancer surgery with regard to short-term and long-term oncologic outcomes. The data from 8 RCTs, 3 metaanalyses, and 2 Cochrane Database of Systematic Reviews was reviewed. Current data suggests that laparoscopic rectal cancer resection may benefit patients with reduced blood loss, earlier return of bowel function, and shorter hospital length of stay. Concerns that laparoscopic rectal cancer surgery compromises short-term oncologic outcomes including number of lymph nodes retrieved and circumferential resection margin and jeopardizes long-term oncologic outcomes has not conclusively been refuted by the available literature. Laparoscopic rectal cancer resection is feasible but whether or not it compromises short-term or long-term results still needs to be further studied.

关键词： Rectal cancer Laparoscopy Total mesorectal excision Anterior resection Abdominoperineal resection

Ages of celiac disease: From changing environment to improved diagnostics

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World Journal of Gastroenterology 2011年第32期17卷 3665-3671页

作者： Alberto Tommasini Tarcisio Not alessandro Ventura Laboratory of Immunopathology Institute for Maternal and Child Health Scientific Institute for Research and Care Burlo Garofolo and University of Trieste Department of Pediatrics Institute for Maternal and Child Health Scientific Institute for Research and Care Burlo Garofolo and University of Trieste

From the time of Gee's landmark writings, the recent history of celiac disease (CD) can be divided into many ages, each driven by a diagnostic advance and a deeper knowledge of disease pathogenesis. At the same time, these advances were paralleled by the identification of new clinical patterns associated with CD and by a continuous redefinition of the prevalence of the disease in population. In the beginning, CD was considered a chronic indigestion, even if the causative food was not known; later, the disease was proven to depend on an intolerance to wheat gliadin, leading to typical mucosal changes in the gut and to a malabsorption syndrome. This knowledge led to curing the disease with a gluten-free diet. After the identification of antibodies to gluten (AGA) in the serum of patients and the identification of gluten-specific lymphocytes in the mucosa, CD was described as an immune disorder, resembling a chronic "gluten infection". The use of serological testing for AGA allowed identification of the higher prevalence of this disorder, revealing atypical patterns of presentation. More recently, the characterization of autoantibodies to endomysium and to transglutaminase shifted the attention to a complex autoimmune pathogenesis and to the increased risk of developing autoimmune disorders in untreated CD. New diagnostic assays, based on molecular technologies, will introduce new changes, with the promise of better defining the spectrum of gluten reactivity and the real burden of gluten related-disorders in the population. Herein, we describe the different periods of CD experience, and further developments for the next celiac age will be proposed.

关键词： Antibodies Autoimmunity Celiac disease Diagnostics History Intestinal mucosa

Multimodal Imaging with 3D-Holograms for Preoperative Planning in Pediatric Cardiac Surgery:A Unique Case Report

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Congenital Heart Disease 2022年第4期17卷 491-494页

作者： Federica Caldaroni Massimo Chessa alessandro Varrica alessandro Giamberti Department of Congenital Cardiac Surgery IRCCS Policlinico San DonatoSan Donato MilaneseMilanItaly ACHD Unit–Pediatric and Adult Congenital Heart Centre IRCCS Policlinico San DonatoSan Donato MilaneseMilanItaly

Multimodal imaging,including augmented or mixed reality,transforms the physicians’interaction with clinical imaging,allowing more accurate data interpretation,better spatial resolution,and depth perception of the patient’s *** successfully overlay 3D holographic visualization to magnetic resonance imaging images for preoperative decision making of a complex case of cardiac tumour in a 7-year-old girl.

关键词： Hologram augmented reality multimodal imaging 3D CHD cardiac tumour arrhythmia anatomy

A Weighted Average Consensus Approach for Decentralized Federated Learning

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Machine Intelligence Research 2022年第4期19卷 319-330页

作者： alessandro Giuseppi Sabato Manfredi Antonio Pietrabissa Department of Computer Controland Management EngineeringUniversity of Rome La SapienzaRome 00185Italy Department of Electrical Engineering and Information Technology University of Naples Federico ⅡNaples 80125Italy

Federated learning(FedL)is a machine learning(ML)technique utilized to train deep neural networks(DeepNNs)in a distributed way without the need to share data among the federated training *** was proposed for edge computing and Internet of things(IoT)tasks in which a centralized server was responsible for coordinating and governing the training *** remove the design limitation implied by the centralized entity,this work proposes two different solutions to decentralize existing FedL algorithms,enabling the application of FedL on networks with arbitrary communication topologies,and thus extending the domain of application of FedL to more complex scenarios and new *** the two proposed algorithms,one,called FedLCon,is developed based on results from discrete-time weighted average consensus theory and is able to reconstruct the performances of the standard centralized FedL solutions,as also shown by the reported validation tests.

关键词： Federated learning(FedL) deep learning federated averaging(FedAvg) machine learning(ML) artificial intelligence discrete-time consensus distributed systems.

Comparison between the seismic response of 2D and 3D models of rigid blocks

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Earthquake Engineering and Engineering Vibration 2014年第1期13卷 151-162页

作者： Angelo Di Egidio Daniele Zulli alessandro Contento Department of Civil Engineering Architecture and Environment(DICEAA)University of L'Aquila

A three-dimensional rigid body on the shape of a parallelepiped is modelled in order to rock on a side or a vertex of the base,in order to evaluate the seismic response of rigid blocks lying on a horizontal *** center of mass of the body is considered as eccentric with respect to its geometric *** seismic input,three Italian recorded accelerograms,with different spectral content,are *** study is mainly conducted to highlight the differences between the seismic response of 2D and 3D models of rigid blocks,with the aim to understand if,in some cases,the use of the 3D model of rigid block is required to obtain safer *** fact,the outcomes show that in some ranges of the geometrical and mechanical parameters that characterize the excitation and the body,a two-dimensional model,which is not able to consider the 3D rocking on a vertex,can provide unsafe *** particular,it is found that the overturning process of the three-dimensional block can occur under excitations which are lower than those which overturn a corresponding two-dimensional block.

关键词： seismic excitation 3D rigid block rectangular base rocking overturning

Neoadjuvant chemoradiation therapy and pathological complete response in rectal cancer

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Gastroenterology Report 2015年第4期3卷 277-288,I0001页

作者： Linda Ferrari alessandro Fichera Division of General Surgery Department of SurgeryUniversity of Washington Medical CenterSeattleWashington 98195USA

The management of rectal cancer has evolved significantly in the last few *** improvements in local disease control were achieved in the 1990s,with the introduction of total mesorectal excision and neoadjuvant *** 1 evidence has shown that,with neoadjuvant chemoradiation therapy(CRT)the rates of local recurrence can be lower than 6%and,as a result,neoadjuvant CRT currently represents the accepted standard of *** approach has led to reliable tumor down-staging,with 15–27%patients with a pathological complete response(pCR)—defined as no residual cancer found on histological examination of the *** who achieve pCR after CRT have better long-term outcomes,less risk of developing local or distal recurrence and improved *** all these reasons,sphincter-preserving procedures or organ-preserving options have been suggested,such as local excision of residual tumor or the omission of surgery *** local recurrence rate has been stable at 5–6%with this multidisciplinary management method,distal recurrence rates for locally-advanced rectal cancers remain in excess of 25%and represent the main cause of death in these *** this reason,more recent trials have been looking at the administration of full-dose systemic chemotherapy in the neoadjuvant setting(in order to offer early treatment of disseminated micrometastases,thus improving control of systemic disease)and selective use of radiotherapy only in non-responders or for low rectal tumors smaller than 5 cm.

关键词： rectal cancer neoadjuvant chemoradiation therapy pathological complete response

Parametric Transformation of Timed Weighted Marked Graphs:Applications in Optimal Resource Allocation

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IEEE/CAA Journal of Automatica Sinica 2021年第1期8卷 179-188页

作者： Zhou He Ziyue Ma Zhiwu Li alessandro Giua the College of Mechanical and Electrical Engineering Shaanxi University of Science and TechnologyXi’an 710021China Shaanxi Key Laboratory of Complex System Control and Intelligent Information Processing Xi’an University of TechnologyXi’an 710048China the School of Electro-Mechanical Engineering Xidian UniversityXi’an 710071China Institute of Systems Engineering Macao University of Science and TechnologyTaipa 999078MacaoChina the Department of Electrical and Electronic Engineering University of CagliariCagliari 09124Italy

Timed weighted marked graphs are a subclass of timed Petri nets that have wide applications in the control and performance analysis of flexible manufacturing *** to the existence of multiplicities(i.e.,weights)on edges,the performance analysis and resource optimization of such graphs represent a challenging *** this paper,we develop an approach to transform a timed weighted marked graph whose initial marking is not given,into an equivalent parametric timed marked graph where the edges have unitary *** order to explore an optimal resource allocation policy for a system,an analytical method is developed for the resource optimization of timed weighted marked graphs by studying an equivalent ***,we apply the proposed method to a flexible manufacturing system and compare the results with a previous heuristic *** analysis shows that the developed approach is superior to the heuristic approach.

关键词： Discrete event system resource allocation timed Petri net weighted marked graph